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A 50.0-g sample of metal at 100.0 degrees C is added to 39.0 g water that is initially 23.50 degrees C. the final temperature of both the water and the metal is 28.46 degrees C.
Use the specific heat of water to find the heat absorbed by the water.
Reduce the production of hazardous waste and encourage recycling and reuse of hazardous materials by charging producers a tax or fee for each unit of waste generated.
if the Hindenburg held 2.0x10^5 m^3 of hydrogen gas at 23 degrees Celcius and 1.0 atm, what mass of hydrogen in grams was present?
Which of these is true about the following reaction?
How many molecules of acetylene (HCCH) react with 149 molecules of oxygen to produce carbon dioxide and water?
A student mixed 50.0 mL of 0.50 M H2SO4 (aq) at 18.5 degrees C with 100 mL of 0.50 M NaOH (aq) at the same temperature. After the reaction was completed, the temperature rose to 22.0 degrees C. What was the heat of reaction? (Assuming the densitie..
A sample of gas occupies a volume of 50.4 mL. As it expands, it does 125.5 J of work on its surroundings at a constant pressure
Calculate the pH of a buffer formed by mixing 95 mL of 0.13 M lactic acid with 85 mL of 0.15 M sodium lactate.
What minimum mass of succimer (C4H6O4S2) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 25 , that total blood volume is 5.0 L , and that one mole of succimer binds one mole of lead.
An X-ray photon of wavelength 0.976 strikes a surface. The emitted electron has a kinetic energy of 958 eV. What is the binding energy of the electron in?
filtrate be used to transfer the residue when the desired product is solid
Generate the conversion equations to calculate the degrees in Celsius, Fahrenheit and Kelvin. Hint: Freezing point of water is found at 5.5 'N
how many moles of co(nh2)2 are present in 150 g of water, if the freezing point of the solution is -4.02 degrees c?
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